Which term describes what it is called when more than one wireless access point (WAP) covers the same SSID?

When more than one WAP covers the same SSID, it is called an extended service set (ESS). A wireless LAN (WLAN) controller coordinates the cell or coverage area so the same SSID is on two different channels. A broadcast domain is one single layer 3 broadcast network in which layer 3 broadcasts will traverse. A basic service set (BSS) is used when a WAP covers a single SSID, such as wireless in your home. A wireless mesh is used when an Ethernet cable cannot be run to each WAP. The WAPs will use one frequency to connect to each other for the backhaul of the data while using another frequency to serve clients.